හවුල් ශ්‍රව්‍ය

CRUSTAL DEFORMATION LOOP Diastrophism = rock deformation. Tectonic forces = tension, compression, shear. Normal fault = tension, hanging wall down. Reverse fault = compression, hanging wall up. Strike-slip = horizontal movement. Horst = block up. Graben = block down. Strike = horizontal line. Dip = direction of slope.